What causes poor contact in the rear window remote control after sun exposure?
2 Answers
The reason for poor contact in the rear window remote control after sun exposure may be that the black rubber adhesive sticks to the glass after intense sunlight exposure, and it returns to normal when cooled. Methods to restore malfunctioning window lift: If the window lift circuit has aged or short-circuited, causing button failure or lift malfunction, it needs to be repaired at a 4S shop or repair shop. Check if the circuit of the window lift motor is disconnected; if it is, press the power-off button, and the power will be restored when it pops back up. Components of the window lift: The electric window lift with glass buttons consists of a motor, reducer, guide rope, guide plate, and glass mounting bracket. The window lift is the mechanism for raising and lowering car door and window glass, mainly divided into electric lifts and manual lifts.
I've been driving for decades and always encountered this issue. The remote control for the rear window often has poor contact, mainly because high temperatures cause the internal components of the remote to expand, leading to loose connections. The remote's battery also tends to degrade after prolonged exposure to the sun, resulting in insufficient power and poor command reception. Additionally, the contacts under the buttons can oxidize or accumulate dust, especially in older remotes. After repeated exposure to the sun, the rubber buttons can age and become sticky, making them hard to press. My usual approach is to first try replacing the battery. If that doesn’t work, I gently clean the buttons and contacts with a cotton swab dipped in alcohol. High temperatures can also interfere with signal transmission—if the car interior gets too hot, the window receiver may respond slowly. To prevent this, I avoid leaving the remote under the windshield in direct sunlight when parking. Instead, I use a sunshade or cover it with a bag. Regular maintenance, like keeping the remote dry and avoiding drops, helps extend its lifespan.